Knoxville Weather Forecast

    • 65
    • 71

    Chance Rain Showers

    • 55
    • 73

    Rain Showers

    • 46
    • 67

    Mostly Sunny

    • 48
    • 68

    Mostly Sunny

    • 46
    • 71

    Mostly Sunny

    • 44
    • 65

    Mostly Sunny

    • 53
    • 68

    Partly Sunny

Today 30 Sep Knox

Partly cloudy. Lows in the lower 50s. Highs in the lower 70s.

Tonight 30 Sep Knox

A slight chance of Thunderstorms this evening. Mostly cloudy with a chance of Showers. Lows in the mid 60s. Southeast Winds around 5 Mph. Chance of rain 50 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Knoxville Temperature Statistics

September Temperature

Galesburg Municipal Airport (7.5 miles)

  • Lowest 28 September, 2026

    45.9 °F

  • Average September

    69.8 °F

  • Highest 3 September, 2026

    93.6 °F

Climate (2021–2026)

Galesburg Municipal Airport (7.5 miles)

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  • Average Low 2021–2026

    41.9 °F

  • Average 2021–2026

    52.2 °F

  • Average High 2021–2026

    62.5 °F
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